Date: 7/16/17 6:06 am From: Lawrence Herbert <certhia13...> Subject: Re: Reporting accurately on eBird
Excellent comments, Dave, We may as well pitch all of our A. C Bent, and G. M. Sutton books. They're info can't possibly be correct ! Larry, in Joplin. Lawrence Herbert <certhia13...> 7-16-17.
On Sat, Jul 15, 2017 at 1:18 AM, David Starrett <StarrettDA...> wrote:
> So this brings up another issue with eBird. I have had this conversation > with a number of ebird reviewers and none could satisfy me. My concern > goes like this. > > > At some point, data started being submitted to eBird. Everything was > "accepted". As the data filled up at some point a filter was turned on. > New data that didn't match/fit was rejected or required proof. So, any > data that went in originally was assumed accurate, but later data was > filtered. There is no inherent reason the first data is any more accurate > than latter, it is just the order of entry. I am oversimplifying, but to > make a point. > > > I have had this manifest itself more than once. My father had detailed > records of 8,600 sightings spread out over 50 years on all seven > continents. He passed away 10 years ago. I painstakingly uploaded all his > sightings to eBird. My dad was a field biologist. He knew how to take > accurate and detailed notes. I trust his sightings to be more accurate > than mine. I received dozens and dozens of ebird reviewer flags. They > asked questions I couldn't answer since he saw the bird not me. So they > rejected the submissions. Many times they were asking about data 20-40 > years old. They were using current range maps and counts. When I asked if > it was possible that when he saw the bird back then the range was different > or the population density was higher, etc. 100% of the time the answer was > no. > > > The classic case for me was Florida scrub jay. He had a sighting from > 1945. It was not in the current range, but not far from it. And in eBird, > a couple of the older sightings were at the edge of the range near my > father's sighting. Submission was rejected. When I suggested to the > reviewer that rather than assume my dad's sighting as in error consider > that he might have just provided valuable historical data about the Jay's > range. We had a back and forth about this and eventually the reviewer, > somewhat rudely even, dismissed the submission as unreliable and let me > keep it on my dad's list, but out of the actual eBird data. I am sure of > the sighting and location. eBird has rejected data that could support a > changing range. That sighting is 70 years old. We know bird ranges > change, they are changing now. Why is the assumption the data is invalid > rather than valuable. > > > I am bothered by this first in data closes the door behind them approach. > I realize there is much more to it than this and I am oversimplifying, but > it does seem that maybe the method of validating data has some flaws to it. > > > Dave > > > > ~~~~~~~~~~~~~~ > David Starrett > Columbia, MO > ~~~~~~~~~~~~~~ > > > ------------------------------ > *From:* Missouri Wild Bird Forum <MOBIRDS-L...> on behalf of > Kathleen Anderson <andersonka...> > *Sent:* Friday, July 14, 2017 6:21 PM > *To:* <MOBIRDS-L...> > *Subject:* Re: Reporting accurately on eBird > > I went to Eagle Bluffs this morning determined to count every Indigo > Bunting, Dickcissel and Common Yellowthroat. I ended up with 38 Indigo > Buntings, 15 Dickcissels and 17 Common Yellowthroats. I'm sure I missed > some, sometimes the brain just tunes out or several sing at once to confuse > the brain, my brain at least. > And about 3/4 way through the refuge I noticed I only had 1 hr left before > I had to leave and I hadn't been to Pool 14 or 15 yet, so I had to quit > stopping to tally every one of those. My point is, I think there are > many reasons why the counts are not perfectly accurate, but we do the best > we can. > Kathleen Anderson, Columbia > > ------------------------------ > *The Audubon Society of Missouri's Wild Bird Discussion Forum* > Archives <https://po.missouri.edu/archives/mobirds-l.html> / Subscription > options <https://po.missouri.edu/cgi-bin/wa?SUBED1=mobirds-l&A=1> / ASM > Website <http://mobirds.org> / Email the list owners > <mobirds-l-request...> > > ABA Birding Code of Ethics <http://www.aba.org/about/ethics.html> > > ASM Fall Meeting: September 22-24, 2017 at Lake of the Ozarks Details and > Online Registration <http://www.mobirds.org/ASM/Meetings.aspx> >